TW201800209A - Turntable type multicolor and multi-material injection molding device and molding technology comprising a mold clamping portion and an injection portion to shorten the manufacturing hours and cost - Google Patents

Abstract

A turntable type multicolor and multi-material injection molding device and molding technology are provided. The device comprises a mold clamping portion and an injection portion. This structure has a mold clamping portion provided with a turntable on the movable plate, and the male mold is disposed on the turntable. After the turntable rotates the male mold plate, the turntable can drive the male mold plate to rotate to allow several plastic tubes to sequentially inject plastic materials with different colors into several cavities of the male mold plate at the same time, in order to achieve the rapid prototyping of multicolor mold finished product, and the turntable is free to change the male mold plates having different number of cavities. The turntable, according to the different number of cavities, rotates the different angle and has different sequence of process operations so that the several plastic tubes sequentially injects plastic materials with different colors into each cavity, thus this invention can drastically shorten the manufacturing hours, further reduce the production cost, and continue to become a very progressive product.

Description

Multi-color and multi-material injection molding device for turntable and molding technology

The present invention relates to a multi-color multi-material injection molding device and molding technology for a turntable, and more particularly to a multi-color multi-plastic injection molding structure and manufacturing method.

According to the knowledge, when two-color or multi-color injection molding is required, two or more sets of mold sets and two or more injection molding machines are usually required to complete single-color injection molding from one set of mold sets, and then take out the embryo. The finished product is placed in another mold set of another injection molding machine, and multi-color combined injection molding is performed to complete the two-color or multi-color finished product. However, in this way, the preform product must be taken out and placed in another In the mold set, it is easy to affect the positioning accuracy. Therefore, the use of multiple injection molding operations is likely to affect the quality of the finished product, which is a problem that people in the field need to overcome.

In view of the above-mentioned shortcomings, the inventor believes that it is necessary to rectify it urgently. Based on his many years of experience in the design and manufacture of related products, and his consistent adherence to the excellent design concepts, he researched and created the above disadvantages. After continuous efforts, the multi-color multi-material injection molding device and molding technology of the turntable of the present invention were finally introduced, which improved the product's efficacy by correcting the excellent product structure.

主要 The main object of the present invention is a multi-color multi-material injection molding device and molding technology for a turntable, which is a multi-color multi-material injection molding device and molding technology for a turntable that can shorten manufacturing hours and reduce costs.

In order to achieve the purpose of the previous disclosure, the multi-color and multi-material injection molding device and molding technology of the turntable of the present invention include a mold clamping portion and an injection portion. The mold clamping portion is mainly composed of a movable plate, a fixed plate, a turntable, and a template. It consists of a mother template and a mold cavity. The movable plate and the fixed plate are opposite to each other on the machine table. The movable plate is pivoted with a turntable. The turntable is rotated at different angles according to the number of mold cavities. A male template is installed, and a female template is installed on the fixing plate. The male template and the female template can be relatively closed, and the male template has at least two or more mold cavities, and the mold cavities are used for injection of several plastic tubes of an injection part. Plastics of different colors, and the injection part is an injection unit composed of several plastic tubes, and each plastic tube can eject plastics of different colors or different materials, so that multi-color molds can be formed in the cavity of the clamping part. Therefore, the structure is provided with a turntable on the movable plate, and the male template is provided on the turntable. After the turntable rotates the male template, the turntable can be used to drive the male template to rotate, so that several plastic tubes are sequentially Plastics of different colors or different materials are shot out of several mold cavities of the male template at the same time to achieve rapid molding of multi-color mold products, and the male template of different numbers of mold cavities can be freely replaced on the turntable. The different rotations of different angles and the sequence of manufacturing actions make several plastic tubes sequentially shoot plastics of different colors or different materials into the cavities at the same time. With this, the invention can greatly reduce the manufacturing man-hours, thereby reducing Production costs continue to be a product that is in line with its progressiveness.

1‧‧‧ Clamping part 11‧‧‧ Movable plate 12‧‧‧ Fixed plate 13‧‧‧ Turntable 14‧‧‧ Male template 15‧‧‧ Female template 16‧‧‧ Mould cavity 161 162‧‧‧ The second cavity 163‧‧‧ The third cavity 2‧‧‧ injection part 21 · ‧‧ plastic tube 31‧‧‧ The first and second plastic tubes are ejected 32‧‧‧ the first rotation 33 · ‧ ‧The first, second, and third plastic tubes are ejected 34‧‧‧ torch 35 · ‧‧ The second rotation is 41 · ‧‧ the first plastic tube is ejected 42‧‧‧ the first is rotated 43‧‧‧ the first and second plastic The tube shoots 44‧‧‧ second rotation 45‧‧‧ The first, second and third plastic tubes shoots 46‧‧‧ the third rotation 47‧‧‧ pallet

The first figure is a schematic plan view of the multi-color and multi-material injection molding device and molding technology of the turntable of the present invention.
The second diagram is a block flow diagram of three-color two-station injection molding of the present invention.
The third diagram is a schematic plan view of the male template of the present invention having two cavities.
The fourth diagram is a schematic plan view of a two-color plastic shot in the first cavity of the present invention.
The fifth figure is a schematic plan view of the rotation of the male template of the present invention.
The sixth diagram is a schematic plan view of three-color plastic injected into the first cavity and two-color plastic injected into the second cavity.
The seventh diagram is a schematic plan view of a three-color plastic finished product in the first cavity of the present invention.
The eighth figure is a schematic plan view of the re-rotation of the male template of the present invention.
The ninth figure is a block flow diagram of three-color three-station and three-color four-station injection molding of the present invention.
The tenth figure is a schematic plan view of the male template of the present invention having three cavities.
The eleventh figure is a schematic plan view of a monochromatic plastic shot in the first cavity of the present invention.
The twelfth figure is a schematic plan view of the rotation of the male template of the present invention.
The thirteenth figure is a schematic plan view of a two-color plastic injected into the first cavity and a single-color plastic injected into the second cavity.
The fourteenth figure is a schematic plan view of the re-rotation of the male template of the present invention.
The fifteenth figure is a schematic plan view of three-color plastic injected into the first cavity, two-color plastic injected into the second cavity, and single-color plastic injected into the third cavity.
The sixteenth figure is a schematic plan view of the male template of the present invention rotating again.
The seventeenth figure is a schematic plan view of a three-color plastic finished product in the first cavity of the present invention.
The eighteenth figure is a schematic plan view of a male template of the present invention having four mold cavities.
The nineteenth figure is a schematic plan view of a single-color plastic shot in the first cavity of the present invention.
Figure twentieth is a schematic plan view of the re-rotation of the male template of the present invention.
The twenty-first figure is a schematic plan view of a two-color plastic injected into the first cavity and a single-color plastic injected into the second cavity.
Figure 22 is a schematic plan view of the re-rotation of the male template of the present invention.
The twenty-third figure is a schematic plan view of three-color plastic injected into the first cavity, two-color plastic injected into the second cavity, and single-color plastic injected into the third cavity.
The twenty-fourth figure is a schematic plan view of the male template of the present invention rotating again.
The twenty-fifth figure is a schematic plan view of a three-color plastic finished product in the first cavity of the present invention.

The present invention relates to a multi-color multi-material injection molding device for a turntable. [Please refer to the first figure] mainly includes:

The mold clamping section (1) is mainly composed of a movable plate (11), a fixed plate (12), a turntable (13), a male template (14), a female template (15) and a cavity (16). The movable plate (11) and fixed plate (12) are opposite to each other on the machine table, and the movable plate (11) is pivotally provided with a turntable (13). The turntable (13) is rotated at different angles according to the number of mold cavities. A male template (14) is installed on the turntable (13), and a female template (15) is installed on the fixing plate (12). The male template (14) and the female template (15) can be relatively closed, and the male template (14) ) Has several mold cavities (16), and several mold cavities (16) are used for injection of plastic tubes (21) of an injection part (2) into plastics of different colors;

The injection part (2) is an injection unit composed of several plastic tubes (21), and each plastic tube (21) can respectively inject plastic of different colors or different materials, so that the cavity of the mold clamping part (1) ( 141) Multi-color molds can be formed inside.

The multi-color and multi-material injection molding technology of the turntable of the present invention, [see the second and third figures] Assume that this embodiment is a three-color two-station injection molding technology, and the plastic tube (21) of the injection part (2) is set as There are three, so the three plastic tubes (21) are divided into the first material tube, the second material tube and the third material tube, and the number of the cavity (16) of the male template (14) is set to two, the second Each cavity (16) is divided into a first cavity (161) and a second cavity (162). When the injection molding operation is started, the movable plate (11) of the mold clamping portion (1) can face the fixed plate ( 12) Slide the mold in the direction to make the male template (14) and the female template (15) relatively closed. [See Figures 2 and 4] to perform the first and second plastic tube injection (31). The first and second material tubes can simultaneously inject the first and second colors of plastic into the first cavity (161) in several cavities, so that the first cavity (161) has a two-color plastic substrate, [ Please refer to the second and fifth pictures] for the first rotation (32), the movable plate 11) The mold can be slid back to remove the male template (14) and the female template (15), and the turntable (13) drives the male template (14) to rotate 180 degrees forward to make the first cavity ( 161) and the second mold cavity (162) are interchanged with each other, and the male template (14) and the female template (15) are closed and closed to complete the first rotation (32). [Please refer to the second , Six pictures] Then the first, second, and third plastic tubes can be ejected (33). The first and second tubes can simultaneously inject the first and second colors of plastic into the second cavity (162). In the third material tube, the third color plastic can be injected into the first cavity (161), so that the first cavity (161) has a three-color mold product, and the second cavity (162) has a two-color mold. At this time, [see Figures 2 and 7], the three-color plastic products in the first cavity (161) can be palletized (34). After the pallets (34) are completed, [Please (See Figures 2 and 8) Finally, perform a second rotation ( 5) The movable plate (11) can be slid back to release the mold, after the male template (14) and the female template (15) are separated, the turntable (13) drives the male template (14) to rotate forward or backward. At 180 degrees, the first cavity (161) and the second cavity (162) are interchanged with each other, and these cavities are returned to a state with only a two-color plastic substrate, and the first, second, and third can be performed immediately. The plastic tube is ejected (33). The first and second material tubes can simultaneously inject the first and second colors of plastic into the first cavity (161), and the third material tube injects the third color plastic into the second In the cavity (162), there is a three-color mold product in the second cavity (162), and the two-color plastic substrate is in the first cavity (161). When the first, second, and third plastic tubes are ejected ( 33) After the completion, the mold (34) and the second rotation (35) are performed again to form a repeated cycle of the injection process, so that one of the mold cavities can quickly form a three-color plastic finished product.

[Please refer to the ninth and tenth drawings] Assuming that this embodiment is a three-color three-station injection molding technology, the injection pipe (2) has three plastic pipes (21), so three plastic pipes (21) It is divided into the first material pipe, the second material pipe, and the third material pipe, and the number of the cavity (16) of the male template (14) is set to three, and the three cavity (16) is divided into the first The mold cavity (161), the second mold cavity (162) and the third mold cavity (163), when the injection molding operation is started, the movable plate (11) of the mold clamping portion (1) can be directed toward the fixed plate (12). Slide the mold to make the male template (14) and the female template (15) relatively closed, [see Figures 9 and 11] for the first plastic tube injection (41), the first material tube The first color plastic can be injected into the first cavity (161) of the plurality of cavities, so that the first cavity (161) has a single-color plastic substrate, and then the movable plate (11) can slide backward After opening the mold, the male template (14) and the female template (15) are separated. [Please refer to the ninth and twelfth pictures] The turntable (13) drives the male template (14) to rotate 120 degrees in the forward direction, so that the first cavity (161) is located at the second and third cavity (162), (163) In the upper position, the male template (14) and the female template (15) are then closed and closed to complete the first rotation (42), [see Figures 9 and 13] and then the first, The action of two plastic tubes ejecting (43), the first material tube can inject the first color plastic into the second cavity (162), and the second material tube injects the second color plastic into the first cavity (161) ), The first cavity (161) has a two-color plastic substrate, and the second cavity (162) has a single-color plastic substrate, [see Figures 9 and 14] for the second time. Rotate (44), the movable plate (11) can slide backward to release the mold, after the male template (14) and the female template (15) are separated, the turntable (13) drives the male template (14) to rotate forward 120 degrees, make the second cavity (162 Located at the upper positions of the first and third mold cavities (161) and (163), the male template (14) and the female template (15) are closed again to complete the second rotation (44). [Please (Refer to the ninth and fifteenth drawings] Then, the first, second and third plastic tubes can be ejected (45). The first material tube can inject the first color plastic into the third cavity (163). The second material tube injects the second-color plastic into the second cavity (162), and the third material tube injects the third-color plastic into the first cavity (161), so that the first cavity (161) There is a three-color mold product, a two-color plastic substrate in the second cavity (162), and a single-color plastic substrate in the third cavity (162), [see Figures 9 and 16] at the end After a third rotation (46), the movable plate (11) can be slid back to release the mold, so that the male template (14) and the female template (15) are separated, and the turntable (13) drives the male template (14). ) Rotate forward 120 degrees or reverse 240 degrees So that the third mold cavity (163) is located above the first and second mold cavity (161) and (162). At this time, [see Figures 9 and 17], the first mold cavity (161) The finished plastic products in the middle three colors are subjected to a supporting mold (47). After the supporting mold (47) is completed, the mold cavities return to a state of a two-color and a single-color plastic substrate, and the first, second, and third can be immediately performed The plastic tube is ejected (45). The first material tube can inject the first color plastic into the first cavity (161), and the second material tube injects the second color plastic into the third cavity (163). The third material tube injects the third-color plastic into the second cavity (162), so that there is a three-color finished product in the second cavity (162), and a two-color plastic in the third cavity (163). Substrate, the first cavity (161) has a single-color plastic substrate. After the first, second, and third plastic tubes are ejected (45), the third rotation (46) and the supporting mold (47) are performed again. Action to form a repetitive cycle of the injection process to make one of the cavities Rapid formation of three colors of plastic products.

[Please refer to the ninth and eighteenth drawings] Assuming that this embodiment is a three-color four-station injection molding technology, the injection pipe (2) has three plastic pipes (21), so three plastic pipes (21 ) Is divided into the first material pipe, the second material pipe and the third material pipe, and the number of the cavity (16) of the male template (14) is set to four, and its four cavity (16) is divided into the first One mold cavity (161), second mold cavity (162), third mold cavity (163) and fourth mold cavity (164). When the injection molding operation is started, the movable plate (11) of the mold clamping portion (1) ) You can slide the closing mold towards the fixed plate (12), so that the male template (14) and the female template (15) are relatively closed, [see Figures 9 and 19] for the first plastic tube injection (41 ) Action, the first material tube can inject the first color plastic into the first cavity (161) of the plurality of cavities, so that the first cavity (161) has a single-color plastic substrate, [please (See Figures 9 and 20) Then the movable plate (11) can slide back to open the mold, so that After the template (14) and the mother template (15) are separated, the turntable (13) drives the male template (14) to rotate 90 degrees in the forward direction, so that the first mold cavity (161) is located in the second, third, and fourth molds. Above the holes (162), (163), (164), the male template (14) and the female template (15) are closed and closed to complete the first rotation (42). [Please refer to the ninth (21)] Then the first and second plastic tube injection (43) can be performed. The first material tube can inject the first color plastic into the second cavity (162), and the second material tube is The second color plastic is injected into the first cavity (161), so that the first cavity (161) has a two-color plastic substrate, and the second cavity (162) has a single-color plastic substrate. [Please (Refer to the ninth and twenty-two diagrams.) Then perform the second rotation (44), the movable plate (11) can slide back to release the mold, and after the male template (14) and the female template (15) are separated, the turntable (13) drives the public template (14 Then rotate 90 degrees in the forward direction so that the second mold cavity (162) is located above the first, third and fourth mold cavity (161), (163), (164), the male template (14) and the female template (15 ) Then close the mold to complete the second rotation (44), [see Figures Nine and Twenty-three] and then you can perform the first, second and third plastic tube injection (45). The first material tube can inject the first color plastic into the third cavity (163), the second material tube can inject the second color plastic into the second cavity (162), and the third material tube can inject the third color Color plastic is injected into the first cavity (161), so that the first cavity (161) has a three-color finished mold product, the second cavity (162) has a two-color plastic substrate, and the third cavity ( There is a single-color plastic substrate in [162]. [See Figures 9 and 24] Finally, the third rotation (46) is performed. The movable plate (11) can be slid back to open the mold to make the template. (14) After separating from the mother template (15), the turntable (13 ) Then drive the male template (14) to rotate 90 degrees in the forward direction or 270 degrees in the reverse direction, so that the third cavity (163) is located above the first, second, and fourth cavity (161), (162), (164) Position, at this time, [see Figures 9 and 25], the three-color plastic products in the first cavity (161) can be palletized (47). After the pallets (47) are completed, the molds The cavity returns to a state with a two-color and one-color plastic substrate, and the first, second, and third plastic tubes can be immediately ejected (45). The first material tube can inject the first-color plastic into the fourth mold cavity. (164), the second material tube injects the second color plastic into the third cavity (163), and the third material tube injects the third color plastic into the second cavity (162), so that the second The mold cavity (162) has a three-color mold product, the third mold cavity (163) has a two-color plastic substrate, the fourth mold cavity (164) has a single-color plastic substrate, and the first mold cavity ( 161) Cooling, when the first, second, and third plastic tubes are ejected After 45) is completed, again the third rotation (46) and the ejector (47) of the operation, to form a repeating cycle of injection process, so that a mold cavity in which to achieve rapid formation of three colors of plastic products.

The multi-color and multi-material injection molding device of the turntable of the present invention has the advantage that the invention uses a turntable on the movable plate, and the male template is provided on the turntable. After the turntable rotates the male template, the turntable can be used to drive the male template to rotate. The action method allows several plastic tubes to sequentially shoot plastics of different colors or materials into several cavities of the male template at the same time, so as to achieve rapid molding of multi-color mold products, and different mold cavities can be freely replaced on the turntable. The public template of the number, the turntable is rotated according to the number of mold cavities at different angles and the sequence of the process action is different, so that several plastic tubes sequentially shoot different colors of plastic into each cavity at the same time, and by this invention It can greatly reduce manufacturing man-hours, and then reduce production costs, and then become a product that is in line with its progressiveness.

In summary, when the present invention is known to be novel and the present invention has not been seen in any publications, it shall comply with the provisions of Articles 21 and 22 of the Patent Law.

Only the above is only one preferred embodiment of the present invention, and it should not be used to limit the scope of the present invention. That is to say, all equal changes and modifications made in accordance with the scope of the patent application of the present invention shall still fall within the scope of the patent of the present invention.

1‧‧‧Clamping Department

11‧‧‧Event Board

12‧‧‧Fixing plate

13‧‧‧ Turntable

14‧‧‧ public template

15‧‧‧Mother Template

16‧‧‧Mould cavity

2‧‧‧ Injection Department

21‧‧‧plastic tube

Claims (10)

A multi-color multi-material injection molding device for a turntable includes:
A mold clamping section is mainly composed of a movable plate, a fixed plate, a turntable, a male template, a female template and a mold cavity. The movable plate and the fixed plate are opposite to each other on the machine platform, and the movable plate is pivotally arranged. With the turntable, the turntable is rotated at different angles according to the number of mold cavities, and the male template is installed on the turntable, the female template is installed on the fixed plate, and the male template and the female template can be relatively closed, In addition, the male template has a plurality of mold cavities, and the plurality of mold cavities are used for injecting several plastic tubes of an injection part into plastics of different colors and different materials;
The injection unit is an injection unit composed of several plastic pipes, and each plastic pipe can respectively inject plastics of different colors, so that multi-color molds can be formed in the cavity of the mold clamping unit;
In this way, the turntable is rotated at different angles according to the number of mold cavities, which in turn drives the male template to rotate, so that several plastic tubes can sequentially shoot plastics of different colors and different materials into several mold cavities in the male template at the same time. In order to achieve rapid molding of multi-color mold products. According to the multi-color and multi-material injection molding device of the rotary table according to item 1 of the scope of patent application, the number of mold cavities of the clamping part is set to two, the rotation angle of the rotary table is 180 degrees, and the number of plastic tubes of the injection part is Set to three. According to the multi-color and multi-material injection molding device of the rotary table according to item 1 of the scope of patent application, the number of cavities of the mold clamping section is set to three, the rotation angle of the rotary table is 120 degrees, and the number of plastic tubes of the injection section is Set to three. The multi-color multi-material injection molding device of the rotary table according to item 3 of the patent application scope, wherein the number of mold cavities of the mold clamping section is set to four, the rotation angle of the rotary table is 90 degrees, and the number of plastic tubes of the injection section is Set to three. A multi-color multi-material injection molding technology for a turntable. The steps of the molding method include:
The first and second plastic tubes are ejected, and the male and female templates of the mold clamping part are closed and closed. The first and second material tubes can simultaneously inject the first and second colors of plastic into the two mold cavities. The first mold cavity, so that there is a two-color plastic substrate in the first mold cavity, after the first and second plastic tube injection steps are completed, the first rotation step is performed;
For the first rotation, the movable plate of the mold clamping section can slide back to open the mold, after the male template and the female template are separated, the turntable drives the male template to rotate 180 degrees in the forward direction, so that the first mold cavity and the second mold The cavities will then switch positions. After the first rotation step is completed, the first, second, and third plastic tube injection steps are performed;
The first, second, and third plastic tubes are ejected, and the male and female templates of the mold clamping section are closed and closed. The first and second material tubes can simultaneously shoot the first and second colors of plastic into the second cavity. The third material tube can inject the third-color plastic into the first cavity, so that there is a three-color mold product in the first cavity, and a two-color plastic substrate in the second cavity. After the injection of three plastic tubes is completed, the step of supporting the mold is performed;
The supporting mold is used for supporting the three-color plastic products in the first cavity. After the supporting mold step is completed, the second rotation step is performed;
The second rotation, the movable plate of the mold clamping part can slide to open the mold to the rear, after the male template and the female template are separated, the turntable drives the male template to rotate 180 degrees again, so that the first cavity and the second cavity Swap positions with it;
With this, after the steps of the supporting mold are completed, there is a two-color and a single-color plastic substrate in the mold cavities, and the first, second, and third plastic tubes can be ejected immediately, the supporting mold and the second rotation can be performed immediately. In order to form a repeating injection process, one of the mold cavities can quickly form a three-color plastic finished product. A multi-color multi-material injection molding technology for a turntable. The steps of the molding method include:
The first plastic tube is ejected, and the movable plate of the mold clamping part can slide the mold closing toward the fixed plate, so that the male template and the female template are relatively closed, the first material tube can inject the first color plastic into a plurality of molds. The first cavity in the cavity is such that there is a single-color plastic substrate in the first cavity. After the first plastic tube injection step is completed, the first rotation step is performed;
After the first rotation, the movable plate of the clamping section can be slid back to release the mold, so that the male template and the female template are separated, and the turntable drives the male template to rotate in the forward direction. After the first rotation step is completed, , Then the first and second plastic tube injection steps are performed;
The first and second plastic tubes are ejected, and the male and female templates of the mold clamping section are closed and closed. The first material tube can inject the first color plastic into the second cavity, and the second material tube can eject the second Color plastic is injected into the first cavity, so that there is a two-color plastic substrate in the first cavity, and a single-color plastic substrate is in the second cavity. After the first and second plastic tube injection steps are completed, proceed The second rotation step;
After the second rotation, the movable plate of the clamping part can slide back to open the mold, after the male template and the female template are separated, the turntable will drive the male template to rotate forward. After the second rotation step is completed, Perform the first, second and third plastic tube injection steps;
The first, second, and third plastic tubes are ejected, and the male and female templates of the mold clamping section are closed and closed. The first material tube can inject the first color plastic into the third mold cavity, and the second material tube is The second color plastic is injected into the second cavity, and the third material tube injects the third color plastic into the first cavity, so that there is a three-color finished product in the first cavity, and the second cavity There is a two-color plastic substrate and a single-color plastic substrate in the third cavity. After the first, second, and third plastic tube ejection steps are completed, the third rotation step is performed;
For the third rotation, the movable plate of the clamping section can be slid back to open the mold to separate the male template from the female template, and the turntable will drive the male template to rotate forward. After the third rotation step is completed, The steps of carrying out the mold;
Supporting mold, supporting the three-color plastic products in the first cavity;
With this, after the steps of the supporting mold are completed, there is a two-color and a single-color plastic substrate in the mold cavities, which can immediately perform the first, second, and third plastic tube injection, the third rotation, and the supporting mold. In order to form a repeating injection process, one of the mold cavities can quickly form a three-color plastic finished product. The manufacturing method according to item 6 of the scope of patent application, wherein the number of the cavity is set to three. In the first rotation step, the turntable drives the male template to rotate 120 degrees in the forward direction, so that the first cavity is located at the first The upper position of the second and third mold cavities. In the second rotation step, the turntable drives the male template to rotate 120 degrees in the forward direction, so that the second mold cavity is located above the first and third mold cavities. In the step, the turntable drives the male template to rotate 120 degrees in the forward direction, so that the third mold cavity is positioned above the first and second mold cavity. After the step of supporting the mold is completed, the first, second and third plastic tubes are ejected again. The first material tube can inject the first color plastic into the first cavity, the second material tube can inject the second color plastic into the third cavity, and the third material tube can inject the third color plastic into In the second cavity, there is a three-color mold product in the second cavity, a two-color plastic substrate in the third cavity, and a single-color plastic substrate in the first cavity. After the injection of the three plastic tubes is completed, the third rotation and the supporting mold are performed again. Action to form a repetitive injection process. The manufacturing method according to item 7 of the scope of patent application, wherein in the third rotation step, the turntable can also drive the male template to rotate 240 degrees in the reverse direction, so that the third mold cavity is positioned above the first and second mold cavity. . The manufacturing method according to item 6 of the scope of patent application, wherein the number of the cavity is set to four. In the first rotation step, the turntable drives the male template to rotate 90 degrees in the forward direction, so that the first cavity is located at the first The upper position of the second, third, and fourth mold cavities. In the second rotation step, the turntable drives the male template to rotate 90 degrees in the forward direction, so that the second mold cavity is located above the first, third, and fourth mold cavities. In the three rotation steps, the turntable drives the male template to rotate 90 degrees in the forward direction, so that the third cavity is located above the first, second and fourth cavity. After the step of supporting the mold is completed, the first and second steps are performed again. When the three plastic tubes are shot, the first material tube can inject the first color plastic into the fourth cavity, the second material tube can inject the second color plastic into the third cavity, and the third material tube can The third color plastic is injected into the second cavity, so that there is a three-color mold product in the second cavity, a two-color plastic substrate in the third cavity, and a single-color plastic substrate in the fourth cavity. The first cavity is cooled. After the first, second and third plastic tubes are ejected, Perform the third rotation and pallet movement again to form a repeating injection process. The manufacturing method according to item 9 of the scope of patent application, wherein in the step of the third rotation, the turntable can also drive the male template to rotate 270 degrees in the reverse direction, so that the third mold cavity is located above the first, second and fourth mold cavity. Positioner.